Currently tremor totem is not removing turn evil.
At first noticed it would not dispel warlock pets or gargoyle pet, I thought it was just an issue with pets. However, it won’t remove a demonology warlock that is currently in demon form and feared as well.
While I agree that it should remove it, I am curious if it did in OG wrath.
Tremor totem is overall very finicky in this version of WOTLK, the ticks don’t seem to be happening as often as they should or the totem’s “dispel” is resisting.
I don’t think Tremor ever effects pets, but it not working on Demo Warlock is probably a bug.